Tube-flanging tool



Oct. 20, 1931-. E- 5 CORNELL, JR 1,828,459

TUBE FLANGING TOOL 'Filed nec. 26, 1929 llulgjmulmi wir in n ,l

Patented Oct. 20, 1931 contratada., or warn-Frown, coNNncrrcUr, Assieivon To THE CHASE conrnmns,,.inconronarnn, orl Wa'rnnnmr. coNNEcT-rcur, A compagnon i' p Application ledDecemberM-i, 1929; `Serial No. 416,473@

This invention-relates to an improvement in Hanging-tools for forming flanges upon the ends oftubesor pipes civ-malleable metal,

such as copper, lead, 'etc. Y

y The main `obj ect ofthis invention is to Vvide a simple and convenient tool of the type referredto characterized `by its capacityV forl beingreadily converted to flange tubesor pipes of ,various diameters, ,wherebya flanging'outiit'may beprovidedlat allow cost Jfor manufacture and' weightioranging tubes or pipes of various diameters. g iththeraboveand other objects in view as Twill appear from the ufollowing, my invention l'consists in `a;tube-,Hanging ,toolV having certa-in details of construction and combinations of parts as will behereinafter described andparticularly recited'in the claims. f

In the accompanying'drawin s: Fig.` lisan?` endzview oa anglng-tool constructedin accordance with my `invention Fig. 2 isa view thereof in side elevation; `Figis ai similar/view'but with the stopsleeve in longitudinal section; l f Figi-4 'isa `view corresponding toV Sbut showing a tube-l sleeved overy r the `pilot v and iiangedI by .engagement -with theV deflectmgsurface; :1 f v. 1- A Y ]`i'g.-5 is `a-,detac'hed view in side elevation of th`e=inandrel-member; and: 1 Figsa, 7,' Sand 9 are corresponding views partly in side elevation and ,partly in longitudinall section` and' illustrating arseriesl of interchangeable stop-sleeves capable of be'- ing organizedgwith the mandrel-member to adaptthe tooltolange tubes of' various diameters. 3^ i Y "j A "In carrying out myiiiventiomlemploy a y andrebmember 10 consistingof a pilot-l1', deflectingsurface 12,an externally;

a conical threadedbodyfportion V13, an` annular sleeve'- seatharige14h and' a head '15.,

The `pil'otlllis formed with a tapered outer into, aitube "(F,ig. the. end `-of `which it'gis ,desiredfto provide witli'a flange' 18 for with minimum bulk andi elbows, Ietc., in accordance with common prac- In :Hanging tubes or pipes for the purpose above described, itv is necessary to determine and limit the degree to which the tubes are flared-and for thispurpose Iemploy a series of stop-sleeves 19a, 19h, 19V and 19d (four, v

moreor less, innumber), eachof which is formed with internal threads 20for interf engagement with the externally-threaded bodyfportionlof the mandrel 10` and with an `inwardlyfprojecting annular.v stop-iange 21, the interior surface of which ispreferably adapted to snugly t the detle'cting-surface 12 of` the saidmandrel.|` v The inner end of the stop-fiange 21 of each stop'sleeve termi,- nates inwan annular'stop-shoulder 22 stand,- ,at anangle with respect to the deflectingsurface12. of the `mandrel-member when the sleeve',V inlquestionis applied thereto, and adapted tobe engaged by` the fiange 18 of 1 thetube 17 to limit the outward Hare there-V of, asl clearly shown in v Fig. 4. Y

The stop-sleeves 192191?, 19,c and 19d correspond to each otheriwithjthe exception that their, respective annularstop-shoulders 22 areof different diameters to adapt them to act .tov limitl the iaringof the flanges of tubes of various diameters. ",Forinstance, as` hereinshown, the V stop-,sleeve 19aL is so proportioned that its annular stopfshoulder 22 is of the correct diameter to determinefand limit theflaring action of my improved'toolupon a tube/'of 1%, diameter; similarly, the stopsleeves 19h, 19.5 ',andx19d`kh'ave" their annular stop-'shoulders 22 proportioned to lim-it and determine the-,Aiare of 1/2v, 1% and 1" tubes respectively.'V y 4 A n A .Y In the use-of thevparticular, form. of my linvention hereinchosen for. illustration, the v first step is to apply to the mandrel-member .10 the correct size stop -sleeve for the particu- .lartuberwhich it isintendedto `Harige or ,iareg This may be readily done .by screwing on the desired stop-sleeve, after which the fpilot llfof the mandrel is. axially enteredinto atube such as 17 Hammer-or malletblows upon thehead 15 will serve to Ydrive the-de fleeting-'surface 12into action tof'outwardly .deflect-the and 0f thetub to ii-ma aange-,18.

The driving of the tool into the tube is continued until the edge of the flange 18 thereof iirmly a-buts against the annular stop-shoulder of the particular stop-sleeve 19a Which at the time is organized with the mandrelmember.

While I haveherein shown and described the stop-sleeve 19a as adapted to be organized With -the Im andrel by means `.of screw-threads, it will -beapparent Without further illustration that my invention comprehends other modes of securing the parts together.

I Wish to call attention to the fact that the angle of the defiecting-sunface. 12 'with :respect to the axis of the mandrel may vary Widely Jto meet different requirements, Avand I Wish to have it understood, therefore, that 'my inventionis no't limitedto n'the inelination Aof the said defleeting-surfaee '12 :to produce an obtuse-angled flange upon 'tubes.

It 'Will be seen 'from the'foregoin'g that by so "constructing the mandrel and'a series of l'interchangeable stop-sleeves 4capable oi being organized therewith, Iprovide a Iflangingoutlit ofminimumbulk and Weight Which mayv .be readily and vconveniently converted tol accurately iiange'or flareftheends-of tubes of variousv diameters.

y l. In allanging-toohthe"combinationwith a mandrel-memberprovidedat :one'endvvith a tube-delecting surface; of a separatelyformed stop-sleeve axially removable Afrom and adapted'to embrace vaportion of-thefsaid mandrel-'member and provided "with an inwardly-extending `annular flange terminating 'in an annular; stop-shoulder located 'in close proximity to 'the defle'Cting-'surface fof the'said mandrel-member t'o 'limitand deterniine 'the Haring of' a tribe orj's'imilar article thereby, thelsaid annular, stop-shoulder constituting the :smallest :internal diameter of the'said sleevegvherebyfa'langedtubemaybe separated from the tool Without Vrequiring i theldemounting of thes'top-sleeve *fromtthe mandrel-member. 4 y l "2. Ina Hanging-tool, the'c'ombinationwith a mandrel-m'ember formed upon its periph- Very jwith vscrew-threads -and iformed at "one end with atube-deiieoting surface; ofaseparately-formed internallyithreaded `stopsleeve adaptedito beaxiallyithreaded upon the said mandrel-memberand provide'dwith an inwardly-'extending Vannular fiange iterminating in'an annular stop-shoulderlocated in'clo'se pr'oximityto the deiectin'g-surfface of Ithe -said mandrelmemberv to limit and determine the flaring of tube orsimilar article thereby, thev said annular stop-shoulderA constitutingthev smallest internal Y"dialneter ofthe saidfsleeve, whereby Aa Yflanged tube maybeseparated iromthe tool Witho-lit're- `quirin'g "the d'emountng of the stop-sleeve from'themandrel-member. Y y y 8. *fIn a ilangingtool; the combinationvii'th a mandrel-member comprising a relatively'- large body-portion, a pilot projecting therefrom for entry into a tube, and a deflectingsurface formed upon the said body-portion and diverging from the base of the said pilot; `'of =a;separatelyfonmed stop-:sleeve :axially removable rom and AVadapted toenibrace -a portion of the said body-portion and provided With an inWardly-extending annular iiange terminating in an 4annular stop-shoulder xlocated "in close proximity to the deflect- :ing-surfaee of the said body-member to limit and determine the flaring of a tube or similar :article-thereby, the '.said annular stop-shoulder constituting the smallest internal diameter-of the saidsleeve, wherebyfa rfianged `rtube may lbe V-sepafi-'ated :from the "tool Without 'arequ'iringv fthe `demounting of fthe stop-sleeve from the mandrel-member.

4.. In a flangingtool,itheieombination iwlith a -mandrelemember @comprising :a .relatiyelylarge externallysthreaded :body-portion, :a pilot'v projecting therefrom |oren'tr.y into ;a tube, 'and 'a 4deiiecting-surface :formed upon the said Vl'body-portion fand fdiverging from the base-of the said pilotc; .of fa separately *formed internallythreuded .stopesleeve adapted to be axially threaded uponitheisaid externally-'threaded Ibody-portion and `provided with .an finwardly-:extending 4annular flange terminating :in an:annular;stop-;ehoul der located iin close iproximity :to ithe dfienting--surfacefoffithe 'said body-member to limit and determinefthefflanin of atubezorsaimilar article thereby, ySthe i sai A annular-:stop-shrimderconstitutinglthefsmallest internal diameteri of ithe said sleeve ,Whe1-'eb 7y.A affflan'ged itnbe may be lseparated from 'fthe :tool Without requiring fthe demounting of 'fthe stopfsleeve from the mandrel-member.

f A5. "Inf ailangingtoohthef combination with a v-mandrel-'member oomprisingfn Jelati-vely large Ibody-portion, a .pilotgpmjecting athenefrom for entry into a tube, a defiectingssurfaeeformeduponithe saidrbodyportion :and diverging from-the basevoffthefsaidpilotgand asleeve-seat formed upon thessaid .body-ipertion `at ithe fend `thereof 'oppoite :the .amid pilot; :of a fseparatelyformed stop-.sleeve adapted lto fembraee sa portion of th'e laaid body-,portion :and ito ibear :against ithe Leaid sleever'seat and fprovided *with an inwardlyextending annular iange terminatingiinam annular fstop-shoulder Leng-aging the `deiiecting-isurfaee-ofthefsaidlbody-member.torlimit and determine theflarng of atuberionsiniilar .ai'tiele,tliereby. l

6. In a Hanging-toolthe,combination with .a `mandrel-member eomprising. a relativelylarge externally-.threaded fbodyjportion, a pilot rprojecting f therefrom f`for `entry "into "a tube, `a ydefiectingi-surface 'formed 'n pon the said. Vbodyportion and "diverving fromfthe base offthe said pilot, Jan ra v'elee've-syeat fforme'd upon-:the saidf body-p oti'orr attheend TRO thereof opposite the said pilot; of a separately-formed internall. -threaded stop-sleeve adapted to be threaded7 upon the said externally-threaded body=portion and to bear against the sleeveseat thereon and formed with an inwardly=extending annular flange terminating in an annular` stop-shoulder engaging the deflecting-surface of the saidv body-member to limit and determine the flaring of a tube or similar article thereby.

In a Hanging-tool, the combination with a mandrel-member comprising a relativelylarge body-portion, a pilot pro] ecting axially from one end thereof for entry into a tube, of a conical delecting-surface formed upon the said body-portion and diverging from t the base of the said pilot; of a se aratelyformed stop-sleeve axially remova le fromV and adapted to embrace a portion of the said body-member and provided with an inwardly projecting annular flange terminating in an annular stop-shoulder located in close l proximity to the conical deflecting-surface of the said body-member to limit and determine the flaring of a tube or similar article thereby, the said annular stop-shoulder constituting the smallest internal diameter of the said sleeve, whereby a flanged tube may be separated from the tool without requiring the demounting of the stop-'sleeve from the mandrel-member.

In testimony whereof, I have signed this specification.

EDWARD S. CORNELL, R. 

